A system for monitoring and analysing the state of equipment and processes in i.e. the

industry will help to increase productivity and prevent unscheduled stops for maintenance.

To do so certain parameters needs to be measured and analysed. The DDC (Distributed Data

Collector) will collect this data and pass it on to a central server for analysis.

This thesis covers the construction of a test bench for such data acquisition to get data to

send across the network and to prove that the concept works. A number of sensors have

been set up to measure four important parameters: temperature, vibrations, current

consumption and rotational velocity. Hardware and software for reading data from the

sensors has also been constructed. All hardware is built into a box where each sensor

measures a controllable object, such as a motor and a heating element.

The program for data acquisition uses an interrupt-based architecture so every time a big

enough change is detected in one of the sensors the DDC-signal is updated by the program.

Each signal has a unique number for identification and is passed across the network at set

intervals.